build环境

我就不啰嗦了，参考
虽然参考了大侠的，但是每个人的环境不同，所以建议大家做好心理准备。
几经周折还是code 还是下载下来了，接下来开始build.

图片.png

开始build

1. source build/envsetup.sh
2. lunch aosp_walleye-eng
   这一步要确认，你的room用在什么设备上，我的是用在Pixel 2上的。
   且是eng模式，所以lunch的时候使用aosp_walleye-eng命令

============================================
PLATFORM_VERSION_CODENAME=REL
PLATFORM_VERSION=10
TARGET_PRODUCT=aosp_walleye
TARGET_BUILD_VARIANT=eng
TARGET_BUILD_TYPE=release
TARGET_ARCH=arm64
TARGET_ARCH_VARIANT=armv8-a
TARGET_CPU_VARIANT=cortex-a73
TARGET_2ND_ARCH=arm
TARGET_2ND_ARCH_VARIANT=armv8-a
TARGET_2ND_CPU_VARIANT=cortex-a73
HOST_ARCH=x86_64
HOST_2ND_ARCH=x86
HOST_OS=linux
HOST_OS_EXTRA=Linux-5.4.0-42-generic-x86_64-Ubuntu-20.04-LTS
HOST_CROSS_OS=windows
HOST_CROSS_ARCH=x86
HOST_CROSS_2ND_ARCH=x86_64
HOST_BUILD_TYPE=release
BUILD_ID=QQ3A.200605.002.A1
OUT_DIR=out
PRODUCT_SOONG_NAMESPACES=device/google/wahoo vendor/google/camera hardware/google/pixel
============================================

3. build error:

FAILED: out/target/product/walleye/obj/RENDERSCRIPT_BITCODE/libclcore.bc_intermediates/rs_element.bc
/bin/bash -c "PWD=/proc/self/cwd prebuilts/clang/host/linux-x86/clang-3289846/bin/clang -Iframeworks/rs/script_api/include -Iexternal/clang/lib/Headers -MD -DRS_VERSION=24 -std=c99 -c -O3 -fno-builtin -emit-llvm -target renderscript64-linux-android -fsigned-char  -Wno-deprecated -Werror  -Werror -Wall -Wextra -Iframeworks/rs/cpu_ref -DRS_DECLARE_EXPIRED_APIS  -DARCH_ARM64_HAVE_NEON -x renderscript frameworks/rs/driver/runtime/rs_element.c -o out/target/product/walleye/obj/RENDERSCRIPT_BITCODE/libclcore.bc_intermediates/rs_element.bc"
prebuilts/clang/host/linux-x86/clang-3289846/bin/clang.real: error while loading shared libraries: libncurses.so.5: cannot open shared object file: No such file or directory
18:18:46 ninja failed with: exit status 1

#### failed to build some targets (02:43 (mm:ss)) ####

fix:
sudo apt-get install libncurses5

4. build error (2)

stubsDir && (if false; then out/soong/host/linux-x86/bin/soong_zip -write_if_changed -d -o  -C  -D ; fi) && rm -rf "out/soong/.intermediates/frameworks/base/hiddenapi-lists-docs/android_common/srcjars"
Picked up _JAVA_OPTIONS: "-Xmx16g"
Killed
[ 90% 88400/98220] //frameworks/base:test-api-stubs-docs Metalava [common]
Picked up _JAVA_OPTIONS: "-Xmx16g"
[ 90% 88401/98220] //frameworks/base:api-stubs-docs Metalava [common]
Picked up _JAVA_OPTIONS: "-Xmx16g"
[ 90% 88402/98220] //frameworks/base:system-api-stubs-docs Metalava [common]
Picked up _JAVA_OPTIONS: "-Xmx16g"
21:59:41 ninja failed with: exit status 1

#### failed to build some targets (03:22:55 (hh:mm:ss)) ####

抱着侥幸的心理状态，又执行了一遍 “make -j4”,居然过了。

[ 97% 9605/9819] //frameworks/av/apex:com.android.media signapk [common]
Picked up _JAVA_OPTIONS: "-Xmx16g"
[ 97% 9608/9819] R8: out/target/common/obj/APPS/Dialer_intermediates/dex/classes.dex
Picked up _JAVA_OPTIONS: "-Xmx16g"
[ 97% 9611/9819] //art/build/apex:com.android.runtime.debug signapk [common]
Picked up _JAVA_OPTIONS: "-Xmx16g"
[ 97% 9612/9819] target Package: Dialer (out/target/product/walleye/obj/APPS/Dialer_intermediates/package.apk)
Picked up _JAVA_OPTIONS: "-Xmx16g"
[ 98% 9630/9819] //art/build/apex:art-check-debug-apex-gen generate art-check-debug-apex-gen.dummy
--bitness=auto, trying to autodetect. This may be incorrect!
  Detected multilib
[100% 9819/9819] Target vbmeta image: out/target/product/walleye/vbmeta.img

#### build completed successfully (32:55 (mm:ss)) ####

参考：

https://source.android.google.cn/setup/build/building
https://source.android.google.cn/setup/build/running#selecting-device-build
https://blog.csdn.net/m0_46702738/article/details/106059563
https://blog.csdn.net/longintchar/article/details/79619465